Low Strength Thread Lock #1342: Perfect small screws and bolts with applications that require force of only 10-20% greater than used for tightening. Medium Strength Bearing and Stud Thread Lock #1333: Retains high strength properties bearings and studs. Apply heat to soften for easier removal. Medium Strength Hi-Temperature Thread Lock #1360: Incorporates anaerobic locking agents, and a heat - resistant element for sealing engine and exhaust parts. Hi-Strength Thread Lock #1303: For various threads, bolts and joints which must remain secure.